This schematic is a project in which we control the switching of bulb/lamp using Arduino and NPN TIP120 Power transistor (used as a switch).

Design a circuit using an Arduino board which should be able to detect diodes and transistors. Configuration of a diode i.e. Forward or Reversed biased diode. The type of a transistor i.e. a NPN or ...

[Dr. Cockroach]’s goal was to build a four-bit computer out of recycled and repurposed junk. The resulting computer, called IO, consists of a single 555, around 230 PNP and NPN transistors, 230 diodes ...

A typical record is shown in Table I, from which we find that the transistor is npn-type and lead 2 is the base. But, lead 1 or lead 3 could be the emitter or vice versa. To detect the collector and ...

It is made from a sandwich of three layers of semiconductor material: two layers of n-type material, which is a semiconductor doped with elements that provide extra electrons, and one layer of p-type ...

Manufacturing companies, particularly those that mass-produce electronic circuits, work pretty much around bipolar junction transistors, like PNP and NPN. However, choosing between these two BJTs can ...